Reversible chain-pump bucket



(No Model) v W P. HARRISON. Reversible Chain Pump Bucket.

No. 236,947! Patented Jan. 25, 1881.

.z. @fiZW V mwm/ N.PETERS, PNOTO LITHOGRAPMER WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

WILLIAM P. HARRISON, OF WARREN, OHIO.

REVERSIBLE CHAIN-PUMP BUCKET.

SPECIFICATION forming part of Letters Patent No. 236,947, dated January 25, 1881.

' Application filed August 26, 1880. (No model.)

1" 0 all whom it may concern:

Be it known that I, WILLIAM P. HARRI- soN, a citizen of theUnited States, residing at Warren, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Reversible Ohain Pump Buckets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to an improvement in reversible chain-pump buckets; and it consists in placing india-rubber disks upon a shank, the disks being separated the one from the other by intervening flanges, as will be fully described hereinafter.

The accompanying drawings represent my invention, in which Figure 1 is a perspective view of the bucket Fig. 2, a vertical section thereof, and Fig. 3 represents the shank with its flan ges.

A represents the shank of the bucket, B the eyes, O the flanges, and D the india-rubber disks. The shank, with its flanges and eyes, is cast in one piece, and the distance between the flanges agrees with the thickness of the rubber disks that are to be placed between them. The disks are made of a flat piece of india-rubber, pliable enough to yield to any roughness orunevenness they may encounter in the tube. They have a hole in the center, and through this the eye of the bucket is forced to place the disks between the flanges on the shank. There may be one, two, three, or more disks placed upon, one shank, according to the depthof the well and the height of the column of water to be raised, or to resist the downward pressure exerted upon them; but they should not be of a thickness to become stifl' or difficult to bend.

In the lower part of the circular eyes, at the juncture with the shank, is a groove, 1, extending across and downward to and on the shank as far as the next flange, and then over and under the flange to the shank again, thus continuing until it reaches the eye on the 0p.- posite end of the shank. This groove is to convey the drip of the water down to the well, passing from one disk to another as slowly as possible, commencing at the top, since when the pump has been used and is left thebuckets always recede, which slightly raises the edge of the disks and causes the water remaining on top to run to the center and be discharged through the groove.

It is evident that a bucket having two, three, or more thin rubber disks will wear longer and better than a bucket with a single disk made of a still unyielding material, as the abrasion is comparatively very slight, and should one edge of the disks be worn away the bucket may be inverted and made again to serve as well as at first.

I am aware that chain-pump buckets have been made with two or more thin disks of india-rubber laid one on top of theother, like a sliced piece, and that the elasticity of these has been claimed as one of its advantages; but in cold weather it is found that these slices of rubber become frozen and cease to operate, because the water enters between and moistens them, and they, being in contact with each other, form a solid hard mass without elasticity, that ceases to perform the work for which it was made. This I therefore disclaim, and avoid its defects by separating the disks sufficiently to prevent their coming in contact, while the water, which would form ice, is allowed to gradually sink below.

Having thus described my invention, I claim 1. In a reversible chain-pump bucket, the shank A, flanges 0, eyes B, combined with the groove a, substantially as shown and described.

2. The combination of the shank A, eyes B, and disks D, separated by the flanges 0, substantially as set forth and described.

3. In a reversible chain-pump bucket, the groove a, beginning in the eye on the shank, running down its side to the first flange, over and under the said flange back to the shank, continuing over and under the flanges in succession, and terminating in the eye at the opposite end of the shank, forming an outlet or drip for the water collected on top of the bucket, substantially as shown and described.

In testimony whereof I have affixed my signature in presence of two witnesses.

WM. P. HARRISON.

Witnesses:

WM. W. MORTIMER, CHAS. H. ISHAM. 

